Finding the Fourth Proportional to 134,530.21, 185,652.93 and 74,101.06
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Solution
The fourth proportional to 134,530.21, 185,652.93 and 74,101.06 is: 102,260.15
Step by Step Solution
- Step 1: Write the proportion equation
134,530.21 : 185,652.93 = 74,101.06 : x - Step 2: Convert to fraction form
134,530.21/185,652.93 = 74,101.06/x - Step 3: Cross multiply
134,530.21x = 185,652.93 × 74,101.06 - Step 4: Simplify right side
134,530.21x = 13,757,078,905.11 - Step 5: Solve for x
x = 13,757,078,905.11/134,530.21 - Step 6: Final answer
x = 102,260.15
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.